CMake option that I found so far to compile with vs2015 are below.
-DCAF_BUILD_STATIC_ONLY:BOOL=yes
-DCAF_NO_BENCHMARKS:BOOL=yes
-DCAF_NO_EXAMPLES:BOOL=no
-DCAF_NO_MEM_MANAGEMENT:BOOL=yes
-DCAF_NO_OPENCL:BOOL=yes
-DCAF_NO_RIAC:BOOL=yes